Improved anti-friction metal



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A. B.- COOK, OFVMANCHESTER, TENNESSEE, ASSIGNOR TO 'WIL- LIAM S. HUGGINS,

O l SAME PLAG E.

Letters Patent No. 90,729, dated Juno 1, 1809.

IMPROVED ANTI-FRICTION METAL.

The Schedule referred to in these Letters Patent and making part of the same.

V the county of Coffee, and State of Tennessee, have invented a new and improved Anti-Friction Metal; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same.

This invent-ion relates to a new metal to be used in jonrnals,'bearings, and boxes of all kinds, and has for its object to be more inexpensive and more eli'ective than any other metal or metallic compound now in use. I

The invention consists in mixing zinc, copper, blocktin, and antimony with each other in about the following proportions and substantially in the following manner:

' Forty-five parts of zinc;

Three parts. of copper;

One part of block-tin; and

One part. of antimony.

The copper is first i'ncltcd; then theblock-tin, next the antimony, and finally the zinc, are added. Gare should be taken not to overheat the metal. For this purpose I propose to cover the metal, while it is being heated, with a coat of pulrerizcdcharcoal.

This coniponndngill last much longer, be cheaper, and produce less friction than any other anti-friction metal heretofore used.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- The metallic composition herein described, to be used as an anti-friction bearing for shafts, 850., as specified. The above specification of my invention signed by me, this 27th day of November, 1868.

A. B. COOK.

Witnesses:

- DANIEL IVIOLEAN,

WILnIs Bnnz'rons. 

